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LHA / LNK Series: Manual firmware upgrade

Your LHA / LNK Series DVR / NVR can receive firmware updates:

  • Automatically over a network, connected by an Ethernet cable (included). Click here for information on how to automatically upgrade firmware.
  • Manually by connecting a USB flash drive (not included) to your DVR / NVR.
  • Manually by connecting a USB flash drive (not included) to your PC / Mac and using the FLIR Client 12 software. Click here for information on how to manually upgrade firmware using FLIR Client 12 software.

IMPORTANT: It is recommended to use automatic upgrade unless directed by technical support to perform a manual upgrade. Technical support will provide you with a .bin file for manual firmware upgrade. Do not power off the DVR / NVR during a firmware upgrade.


  • Ensure your DVR / NVR system is connected to a network using the included Ethernet cable.
  • Save the .bin file in the root folder of a USB flash drive (not included)‎,‎ and connect the USB flash drive to a USB port on your DVR / NVR.

To manually upgrade the DVR / NVR firmware:

  1. In the taskbar, click the Main Menu icon (home icon), and then click Advanced > Maintenance.

    Maintenance tab - manual firmware upgrade

  2. In the Maintenance tab, click Firmware Upgrade.

  3. Select the .bin file, and then click OK.

    Firmware Upgrade

  4. Click OK on the confirmation window.

  5. Allow 5-10 minutes for the system to upgrade. The DVR / NVR will automatically restart when the firmware upgrade is complete.